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Watch Later 3:24

By: t0906, Views: 1486

Biological Concept-Ch.7 (5) - Respiratory system Pharynx

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By: t0906, Views: 1615

Biological Concept-Ch.7 (6) - Respiratory system Trachea Bronchi Bronchioles

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By: t0906, Views: 1593

Biological Concept-Ch.7 (7) - Respiratory system Air Sacs

Watch Later 5:13

By: t0906, Views: 1511

Biological Concept-Ch.7 (8) - The respiratory system Lungs

Watch Later 9:01

By: t0906, Views: 1038

Biological Concept-Ch.7 (9) - The differences between inhaled gas and exhaled gas

Watch Later 4:58

By: t0906, Views: 2328

Biological Concept-Ch.7 (11) - Adaptive features of air sacs

Watch Later 3:06

By: t0906, Views: 1450

Biological Concept-Ch.7 (13) - Transport of respiratory gases

Watch Later 9:14

By: t0906, Views: 1449

Biological Concept-Ch.7 (14) - Transport of oxygen

Watch Later 7:45

By: t0906, Views: 1341

Biological Concept-Ch.7 (15) - Transport of carbon dioxide

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